Weaving device



H. ZENKER Jan. 25,1927.

WEAVING DEVICE Filed sept. '2.' '1.921 F' .1.

Patented dan. 215i, i921 ld l'l Ell 'l' HERMANN ZENKER, OF STEGLTZ, NEAR BERLIN, GERMANY.

WEAVING DEVICE.

Application le. September 2, 1921, Serial No. 498,036, and in Germany May 8, 1917.

(GRANTED UNDER THE PROVISIONS O'FiTHE ACT 0F MARCH 3, 1921, 41 STAT. Il., 1313.)

This invention has reference to a weaving` device wherein the warp is led in a zigzag or tortuous manner over seriesY of drums or cylinders mounted in the frame of the device. By this way a length ot warp disproportionately great in comparison with the small dimensions of the `device itself is obtained and a considerable length of material can be woven. The warp itself is formed from an endless thread moved by a mechanically7 driven drum or roller. The tension upon the warp may be secured and may be varied or adjusted by the displacev ment of one of the rows of drums with respect to the other. The shed or lease is formed by double oscillatory levers of differentleng'ths having book-shaped arms with fork-shaped bearings and beingactuated by a tensioning or drawing device. In the said forleshaped bearings of the double armed levers, reeds, one in front of the other, are suspended.

The said reeds are composed of any number of thin plates of dilferent lengths, fitted side by side and arranged in such a manner, that slots of differentlength are formed, a long narrow orwide slit being followed by a shorter narrow or wide slit. The sequence or order ot the plates can be varied with the requirements. vWhen rising the reeds always take up only the alternate or Second thread. The long plates of the reeds render impossible any spring-ing over ot the threads.

The shuttle may be act-uated byhand or by means of a throwing` device. I prefer to employ a throwing-device actuated by a lever that may be moved to the leftand to the right and besides in a forward ydirection for the purposes hereunto specified.

Two preferred forms of construction of my weaving device are shown by way of eX- lample on the accompanying drawing in which Fig. l is a longitudinal section through the first modification showing the arrangement of the warp andthe operating mechanism for the double-levers carrying the reeds. 2 is a sidewiew of a doublelever adapted to carry the reeds. Fin; 3 is a partial. front view of the same. 4t shows detail-views of the plates forming the reeds. The arrangements shown in Figs. 2 4 may also be employed with the second modification of the object of the invention, Fig. 5 is a longitudinal section through the second modification of the device,y Fig. 6 illustrates a vertical section along the line A-B of'Fig. 5, Fig. '.7 shows the adjusting mechanism, and Fig. 8 is the top view of the device. In all figures the same reference letters indicate the same parts.

In the drawings a is a desk-shaped casing, in the upper sid-e of which, at the upper and lower extremities, slots c and CZ are provided, in which the warp-carrying drums rotate freely. ln the position where the shed is to be formed, there is also a slot through which project the reeds g, L, which are fitted one in front of the other. On the inner sidewalls of the trame are pivoted on thepin i the two `double-levers having longarms la, Z, and short arms c, Z', this rendering possible, on the one hand, the positioning of the reeds one in front of the other, and, on the other hand, the rear end connection, formed between the short arms of each pair of the levers. levers forming a pair is advantageously effected by means of rods r, c. ln the modi lication shown in Figs. 1-4 m are stationary carriers for the upper row of drums, which comprises several drums o arranged behind each other, and a are the corresponding carriers for the lower row of drums p. Said rails n are vertically displaceable by means` of screws g. The warp is formed from a continuous thread and is led by a zigzag path from the drum f alternately over the drums 0 and p in turn, finally over the drum e and the desk-top of the frame back to the starting carrying druml f, and then conti nued along the path hereinbefore described,

till the warp is completed. The warp is brought up in the following manner. The thread coming from a bobbin once being conducted over all the drums, its starting endis connected to the thread coming from the bobbin, so that an endless winding results. Now by turning` the carryingv dru-m f this endless winding runs over all the roll- .ers like a driving band and takes along with it the thread running from the bobbin, so that new windings forming` the warp are made in such a number as corresponding' to the latitude of the weft to be made and to the thickness of the thread employed. The drum f may be turned by hand or mechanically. The warp being completed the final end of the thread is connected to the last but one windingof the thread. The connection of the starting and final end of The connection between the two the threadto the irst and last but one winding ofthe warp may be done by splitting.

For the purpose of the leaseor shedformation the? reeds g, 7i are employed suspended by bearing pins a: in the fork-shaped extremities of the doublearmed levers Z, 7a'. The short arms 7:1, Z1 (see Fig. 2) of said levers are attached by means of rods i, s with the tension-cords t, u (Fig. 1.), which pass over guiding rollers o, el, o2, and may be connected with an oscillatory device fic.

Tzhe reeds g, 7i aremade fromflong thin plates y. and short thin plates .i/l, y2 resp., which are united by screwbolts z2 'in such a manner that the reed shows long and short slits. Thenr rising the reeds alternately, always the alternate or second thread is talreiiup, the long plates renderingimpossible4 any disturbing of the warp.

With the secondimodiiication (Figs. 5-8) the casing a. is provided in two parts that can be telescoped one into the other in order tobe adjustedin height in the manner described` below, so that by reason of the alteredr length of the warp resulting from such an adjustment woven nieces of varied and great length can be produced. lVhile with themodication described the shuttle is moved by hand, with this second modification the shuttle is actuated by means of' a lever that may be thrown to the leftV and to the'right and in a forward direction. By means of this lever, adapted for movements in various directions, the weft can at the Sametime be pressed home against the work.

The means by'which the case is adjusted to vary the space betweenzthe spindles of the Warp carrying rollers comprise the `outer portion of the casing land the inner portion of the casing 2, thelower `row of rollers 4` resting inthe outer-portionof the casingl 1 andthe upper row of rollers 3 restingin the inner'portion :ofthe casing 2. At the end walls ofthe portions of the easing` a leverage mechanism 5 is provided, operating` on the principle of the Nrnberg shears, which leverage` mechanism can he actuated. in a suitable manner, for, example, by meansof a c-ranlri, and fixed in position, with apredetermined space between the two rows of' rollers, iny accordance with the required length' of the woven piece.

The lever 2O provided foractuatinp;l the shuttle 22. is situated within the space loetween the two front portions of the casing', and it is geared by means of a segmental rack 7 to a rack Swhich is continuedin both directions on the frame 9, insuch a manner, that, on the leve-r being moved to the left, the

` frame 9 is pressed to the right. and on the lever being` moved to the right. the frame is pressed to the/left. Hinged to'a spring` arm 10, ofwhich one isprovided at the left andA at the rightof the inner portion of the casingA is aibeater 12 standing` rigidly when tion, the dfinger 1.1A tilts over theY beater.,iwhen the fra-nie 9 has passed in the direction of the arrow, which returns bythe gravity of its lowerl arm in its upright position (sec the additional iigureto Fig. G) so that the respective arm 10 is ready for new engagement which the respective finger' 11. at the to-and-fro movement of the frame' 9.A Bv

the movements of the lever tothe right and to the left the warp threads are separated at the same time by the pressure arms 1l and 15, which in turnby means of studs 25,4

2G, actuate the reed support levei's-pivotally carried upon the spindle 16 and returning:

into its normal position by means of the weight of the reeds or springsnot` shown. The upper part 20 of the lcvei' 2O can be turned baclfward and forward around thel pivot 17. An evel8-attheendof-the pivotedpart 20 of the lever 2O is connected with itlieweft pressing` reed 21 by means of a rod'19 so that the weft pressing reed 21 is pressed home against the worlafter eachshuttle stroke. The shuttle `race 13 is attached to the weft pressing reediin order to simplify a-nd ensure the correct actioniof theshuttle.

This second modification is operatedV to malte a fabric in the following` manner: The warp being completedV in the manner described with relation to the first mentioned modification and the shuttle being.

brought into the position shown in Fig. 'the lever QOis moved to the left. Its stud 2G' then lowers the rod'27 connecting the ends of the leve-rs Z Z shown inthe plan in Fig.- 8I and raises` the corresponding`I reed supported by the rods ZZ-thereby formingthe shed or lease. At the-same time by means of the segmental rack 7 the lever QOhasV moved the frame 9 tothe right,I whichl frame. the shed or lease 'being formed, bends and releases the beater sor that it hits the shuttle' and drives'it through the thiead'into the opposite shuttle iestlQ.

wards, so that tlieweft pressing reedil is pressed home against the work. The part 18 ot the lever 20 is then returned to its normal position and the lever 2O is now movedv to the right, thereby turning the levers le 7c by pressing down the rod 28 connecting` `the ends of said levers by means ofthe stud 25,l

The lever 2() isthen returned into its normalrposition (Fig. 6)v and its upper inset-part 18 turnedbaolrf raising the corresponding reed supported by the rods 7a2 and forming again the shed or lease. At the same time the frame 9 has been moved to the lett so that the shuttle is hit by the left hand beater and is driven through the thread into the shuttle rest Q3. The lever Q is then turned again into its normal position and the inset part 18 turned backwards in order to press the wett pressing reed 2l home aga-inst the work. By con` tinuously repeating the movements described of the lever 9.0 the fabric proceeds until the warp, moved forwards by turning the drum 7, is exhausted.

I claim:

l. In a Weaving device ot the kind as de* scribed, the combination of warp-carrying drums, an upper system of rollers and a lower system of rollers over which a continuous Warp thread is conducted in zig-Zag fashion, means for varying the distances of the rollers of one otsaid systems from the rollers of the other of said systems in a vertical direction, shedeorming reeds, eed actuatingl arms, and pivotal connecting means between said reeds and said arms.

2. In a weaving device of the kind as described, the combination of warp-carrying drums, an upper' system of rollers and a lower system ol rollers over which a continuous warp thread is conducted in zig-zag fashion, means for varying the distances of the rollers of one ot said systems from the rollers of the other of said systems in a vertical direction, shed-forming reeds comprising dents separated by alternate long and short bars forming alternate long and short slots between .ea-id dents, said dents and separating bars beingl clamped on Stringing members, reed actuating arms, and pivotal connecting means betwen said reeds and Said arms.

3. In a Weaving device ot the kind as described, shed forining reeds, weft pressing reeds, and shuttle throwing means, a lever movable as a whole in one plane for actuating said shed forming reeds and said shut-- tle throwingmeans, said leverl having a p0rtion movable in a plane at right angle to the first plane for actuating said weft pressing reeds.

il. In a weaving device of the kind as described, shed forming reeds, weft pressing reeds and shuttle throwing means, a lever having an upper part and a lower part hinged together, means connected to the lower part of said lever whereby .said lever being oscilla-ted in full in one plane, said shed forming reeds and said shuttle throvving` means are actuated, and means connected to the upper part of said lever Whereby the upper part of said lever being oscillated in another plane, said Wett pressing reeds are actuated.

In testimony whereof I aliiX my signature.

HERMANN ZENKER. 

